let olddata ='2018-08-30 11:00:00';
let mydata=new Date(olddata);
console.log(mydata);
let newdata=mydata.getTime();

let olddata ='2018-08-30 11:00:00';
let mydata=new Date(olddata);
console.log(mydata);
let newdata=mydata.getTime();
console.log(newdata);
let olddata2=olddata.replace(/-/g, '/');
console.log(olddata2)
let mydata2=new Date(olddata2);
console.log(mydata2)
let newdata2=mydata2.getTime();
console.log(newdata2)